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全部文章（共93篇）

质因数分解统计

int divide(int number) { int tot = 0; for (int i = 2; i <= number; i++) { if (number % i == 0) { tot++; ...

数学

2020-08-08

0 249

分块

LL fenkuai(LL k){ LL j; LL ans=0; for (LL i=1;i<=k;i=j+1){ j=n/(n/i); ans+=(j-i+1)%mod*((n/i)%mod)%mod; ans%=mo...

数学

2020-08-02

0 204

java类和比较

//优先队列 static Comparator<Integer> cmp = new Comparator<Integer>() { public int compare(Integer e1, Integer e2) { retu...

2020-07-31

0 227

日记：记忆与认知的延伸（游戏篇）

游戏关于刺客信条(unity) 入题：新鲜的是潜入刺杀的玩法。破题：除了玩法外，装备、道具、金钱、剧情、历史资料都不是重点。体验完玩法后就没必要留在虚拟世界与npc互动，为着个虚拟的刺杀目标搜集虚拟的金钱。关于war3，dota，lol，ACM 入题：我们都喜欢对抗...

2020-07-16

0 261

java learning

template import java.io.*; import java.util.*; public class Main { FastScanner in; PrintWriter out; long mod = 998_244_353L; // (long) ...

2020-07-15

0 232

presentation: friendship and growth

Welcome!!! to my presentation ！, About friendship, and growth. When i was little(靠过来正式), i used to make many friends. no matter who they are!, we can ...

2020-06-28

0 215

素数欧拉筛法

线性筛素数 int pnum=0; int pa[maxn]; bool pvis[maxn]; void prime_init() { memset(pvis,0,sizeof(pvis)); FOR(i,2,MAX) { if (!pvis[i]) { pvis[i]=1;...

数学

2020-06-06

0 217

writing: Farewell my princess

adapted from poj 2482 text **Fleeting time does not blur the memory of you. Has it really been three years since i first saw you? I still rememb...

2020-06-03

0 322

writing: Flexibility: key for humans to live through extraordinary times

With the outbreak of COVID-19, it seems that 2020 is not a perfect beginning of this decade. However, it doesn’t dim everything from then on. Just as...

2020-05-28

0 268

kotlin笔记：copy from a man in integrity

https://codeforces.com/contest/1360/submission/81404262 import java.lang.IllegalArgumentException import java.lang.StringBuilder import java.sql.Arra...

2020-05-27

0 237